Printer&#39;s registering device



June 17, 1930. F NOELL PRINTERs REGISTERING DEVICE Filed March 29, 1929 IN VEN TOR.

' ATTORNEY.

Patented June 17, 1930 UNITED s'r'rs 7 EQE ELMER F. NOELL, OF CINCINNATI, OHIO, ASSIGNOB TO THE PRINTING MACHINERY COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO PBINTERS REGISTERING DEVICE Application filed March 29, 1929.

My invention relates broadly to registering devices for printers use and with which printing plates may be held in registered position in a foundation plate. My invention specifically relates to a novel drop in hook for a slotted printing foundation plate, in which the groove has a dovetail or truncated wedge shape wider at the bottom than at the top.

In the use of foundation plates having truncated wedge shaped grooves, in the past it has been the practice to disassemble the registering clamp, position the base in the groove, and then attach the clamping device before adjusting the clamp against the printing table. This has required great loss of time and difficulty in changing the position of the hook. It is the object of my invention to provide a registering device or clamp which may be inserted in any desired position within a truncated conical groove and then with substantially no further movement tightened against the printing plate.

Specifically it is the object of my invention to provide a registering device iaving a face extending at the same angle as one of the side walls of the groove, with preferably a pair of swiveled wedging blocks having angled faces opposed to the angled face of the device, which after the first base of the device is in position within the groove may be swung into engagement with the other side wall of the groove. Then by the provision of a screw for elevating the entire assembly within the groove the side wall and the wedge blocks may be wedged in position with the clamping hook extending from the wedged members and bearing against the printing plate.

The above and other specific objects to which reference will be made in the ensuing disclosure I accomplish by that certain combination and arrangement of parts of which I have shown several preferred embodiments.

Referring to the drawings:

Figure 1 is a plan view of a foundation plate showing a printing plate held in position by four registering devices made in accordance with my invention.

Figure 2 is a detail sectional view taken longitudinally through one of the registering Serial No. 351,049.

devices as would be indicated by the lines 22 in Figure 1.

Figure 3 is a detail sectional view as would be indicated by the lines 3-3 in Figure 1.

Figure 4 is a side elevation of a registering device with the clamping blocks down.

Figure 5 is an end elevation of one of the registering devices with the clamping blocks down.

Figure 6 is an end elevation of one of the registering devices with the clamping blocks up.

Figure 7 is a side elevation of one of the registering devices with the clamping blocks up.

Figure 8 is a plan view of a slightly modified type of registering devices.

Figure 9 is a sectional view of the device shown in Figure 8 taken along the lines 99;

The foundation plate 1 is provided with a series of spaced grooves 2 being of truncated wedge shape. The sidewalls 3 of the grooves are inclined inwardly from the bottom to the top of the groove so that when a registering device is once within the groove it is a simple matter to wedge it in position by merely ele vating the device within the groove.

The printing plate is indicated at 4 in Figure 1, and as is customary with such mechanism, the function of the registering devices is to securely hold the printing plate in position.

The preferred type of registering device, as is shown in Figures 2 to 7, has a base or carrier having sides 5 and 6. The sides slant in alignment parallel with the slant of the outer of the walls of the groove. The thick ness of the base is equal to the width of the groove at its uppermost portion. Pivotally mounted within the base I have mounted two wedging blocks having sides 7 and 8, which are in alignment parallel with the inner wall of the groove, so that when the base is inserted within the groove the two wedge blocks may be turned down into the groove and the device is held in the groove with parts which correspond to the shape of the groove.

In the modifications shown in Figures 1 to 7 the clamping member is pivotally mounted within the base. The clamp 9 has an inclined clamping edge which is preferably inclined so as to fit snugly against the slanting edge wall 10 of the printing plate 4. A collar 11 fits against an annular shoulder in the base. The screw 13 having an enlarged head l l fits within theorifice 15' in the clamping memberwith the threads of the screw engaging the threads within the orifice 16 in the base.

In the modification shown in Figures 8 and-9 the clamping jaw!) is formed integrally with the base and arranged at a suitable angle relative to the angle of the groove so that it will bear flatwise against the edge of the printing plate. The SOIQWlB in this instance is inserted in a threaded hole extending upwardly into the base.

In both instances the clamping jaw member has an orifice: 17 therein through which a squared instrument may be inserted to engage thesqu-ared orifice 18 in the screw. By turning the screw, after the registering 'device has been seated in the groove in the modifications shown in Figures 1 to 7, the tightening down of the flange of the, screw puils the base upwardly in the groove causing the'clamping .jaw to be held in rigid position and causing the base to be clamped within the groove- In Figures 8 and 9 the end of the screw will bear against the bottom wall of the groove and cause the base and swiveled blocks to. be wedged within the groove. I

Modifications in structure will readily occur to those skilled in the art without departing from the inventive principle involved.

. Having thus described my invention, what I claim as new and desire tosec'ure by Letters Patent, is

1. A printers registering device "comprising a supporting 'bfase having parallel sides inclined at the same angle as one of the sides of a groove in a foundation plate within which said device is adapted to be dropped,

and clamping members having sides parallel with another side of said g roo-ve movably mounted in "said supporting base.

2. A printers registering device compris ing a supporting base having parallel sides inclined at the same angle as one of the sides of a groove in a foundation plate within which said device is adapted to be dropped, and clamping members having sides parallel with another side of "said groove movably mounted in said sup orting base, and means for clamping said base and clamping members within said groove.

3. A printers registering device comprisinga supporting base having parallel sides inclined at the same angle as one or the sides of a groove in a foundation fplate within which said device is adapted to be dropped, and clamping members having sides parallel with another side of said groove movably mounted in said supporting base, and means for clamping 'said bas'e and clamping members within said groove, and means mounted on said base adapted to clamp against the edge of a printing plate.

4. A printers registry device comprising a carrier member having slanting parallel sides and being as thick as the widthof the top of a dovetail groove in a foundation plate, the slant of said parallel sides being 6. A printers registry device comprising a carrier member thick enough to drop within a dovetail groove, said carrier member having a wall extending in parallel alignment with one of the walls of the dovetail groove, and at least one swiveled block having a wall extending in parallel alignment with the opposite wall of the groove, and a clamping member formed integrally with said carrier, and a screw adapted to bear against the bottom wall of the groove for clamping said device within the groove.

7. A print-ers registry device "comprising a carrier thick enough to drop within a dove tail .groove,vsaid carrier member, having a wall extending in parallel alignment with oneof the" walls of the dovetail groove, and

at least one clamping member having a wall extending in parallel alignment with the op posite wall of the groove, and means for piv-- otally mounting said clamping I member on said carrier.

ELMER F. NGELL. 

